Silent video can predict surgeons’ non-technical skills, impacting training and outcomes.

• Analyzed 40 laparoscopic appendectomy videos with over 10,000 annotated actions.
• Mean cognitive rating was 5.6 out of 8, with a correlation between decision-making and situation awareness (r=0.8).

This method paves the way for scalable assessments of surgical performance.

• Five key predictive factors identified include dexterity index and actions during critical operation phases.